干旱区生态环境知识资源中心(Arid): 乌兰布和沙漠中国沙棘果实成熟期茎干液流规律及其与环境因子的关系

Arid

	乌兰布和沙漠中国沙棘果实成熟期茎干液流规律及其与环境因子的关系
其他题名	Stem sap flow dynamics of Hippophae rhamnoides L. subsp. sinensis Rousi in relation to environmental factors in Ulan Buh Desert during fruit stage
	黄雅茹; 辛智鸣; 罗红梅; 罗凤敏; 马迎宾; 葛根巴图; 李新乐; 孙非; 郝玉光
来源期刊	生态学杂志
ISSN	1000-4890
出版年	2015
卷号	34 期号:11 页码:3125-3131
中文摘要	利用TDP液流测量系统和自动气象站对乌兰布和沙漠中国沙棘(Hippophae rhamnoides L. subsp. sinensis Rousi)的液流变化及其环境因子进行观测。结果表明:沙棘的茎干液流速率呈"几"字宽峰曲线,昼夜变化明显,夜间仍有低值液流;液流启动时间为8: 00,在10: 00左右达到峰值,峰值大小为227.94~ 307.86 g?h~(-1),至21: 30基本下降到了极低值(11.04~26.29 g?h~(-1))。沙棘液流速率变化趋势与环境因子变化趋势相吻合。晴天液流速率较大,变化幅度也大,变幅在300 g?h~(-1)以上;阴雨天液流速率变化小。相关性分析表明,影响沙棘液流速率的主要因子为太阳总辐射、空气相对湿度、空气温度以及风速。另外,沙棘液流与蒸腾速率日变化曲线均为单峰曲线,但叶片蒸腾速率峰值出现时间滞后液流峰值出现时间3 h。
英文摘要	In this study,Dynamax sap flow measuring system and automatic meteorological station were used to estimate stem sap flow of Hippophae rhamnoides L. subsp. sinensis Rousi and its relationships with environmental factors during fruit stage in Ulan Buh Desert. The results showed that the stem sap flow of H. rthamnoides fluctuated significantly,with a single-peak curve from day to night. The sap flow started at 8: 00. The peak value of the sap flow appeared at about 10: 00,being 227.94-307.86 g?h~(-1). The minimum value of the sap flow appeared at about 21: 30,being 11.04-26.29 g?h~(-1). The sap flow was closely related to environmental factors. The sap flow rate and variation on clear days were generally higher than on cloudy and rainy days. Total radiation,air relative humidity,air temperature and wind speed were the major factors affecting the stem sap flow rate of H. rthamnoides. Moreover,the diurnal variation characteristics of transpiration rate was similar to the sap flow rate,but the peak value of the transpiration rate lagged about 3 hours compared to that of the sap flow.
中文关键词	液流 ; 中国沙棘 ; 气象因子 ; 乌兰布和沙漠
英文关键词	sap flow Hippophae rhamnoides L. subsp. sinensis Rousi environmental factors Ulan Buh Desert
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:5572525
来源机构	中国林业科学研究院沙漠林业实验中心
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/233245
作者单位	中国林业科学研究院沙漠林业实验中心, 磴口, 内蒙古 015200, 中国
推荐引用方式 GB/T 7714	黄雅茹,辛智鸣,罗红梅,等. 乌兰布和沙漠中国沙棘果实成熟期茎干液流规律及其与环境因子的关系[J]. 中国林业科学研究院沙漠林业实验中心,2015,34(11):3125-3131.
APA	黄雅茹.,辛智鸣.,罗红梅.,罗凤敏.,马迎宾.,...&郝玉光.(2015).乌兰布和沙漠中国沙棘果实成熟期茎干液流规律及其与环境因子的关系.生态学杂志,34(11),3125-3131.
MLA	黄雅茹,et al."乌兰布和沙漠中国沙棘果实成熟期茎干液流规律及其与环境因子的关系".生态学杂志 34.11(2015):3125-3131.